WO2006013526A3 - Diffractive part - Google Patents

Diffractive part Download PDF

Info

Publication number
WO2006013526A3
WO2006013526A3 PCT/IB2005/052460 IB2005052460W WO2006013526A3 WO 2006013526 A3 WO2006013526 A3 WO 2006013526A3 IB 2005052460 W IB2005052460 W IB 2005052460W WO 2006013526 A3 WO2006013526 A3 WO 2006013526A3
Authority
WO
WIPO (PCT)
Prior art keywords
wavelength
information layer
radiation
diffractive
polarisation
Prior art date
Application number
PCT/IB2005/052460
Other languages
French (fr)
Other versions
WO2006013526A2 (en
Inventor
Bernardus Hendriks
Teunis Willem Tukker
Original Assignee
Koninkl Philips Electronics Nv
Bernardus Hendriks
Teunis Willem Tukker
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Koninkl Philips Electronics Nv, Bernardus Hendriks, Teunis Willem Tukker filed Critical Koninkl Philips Electronics Nv
Priority to EP05773307A priority Critical patent/EP1774520B1/en
Priority to JP2007523217A priority patent/JP2008508653A/en
Priority to DE602005007356T priority patent/DE602005007356D1/en
Priority to US11/572,603 priority patent/US7602691B2/en
Publication of WO2006013526A2 publication Critical patent/WO2006013526A2/en
Publication of WO2006013526A3 publication Critical patent/WO2006013526A3/en

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G11B7/135—Means for guiding the beam from the source to the record carrier or from the record carrier to the detector
    • G11B7/1353—Diffractive elements, e.g. holograms or gratings
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
    • G11B7/09—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
    • G11B7/0901—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following for track following only
    • G11B7/0903—Multi-beam tracking systems
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B2007/0003—Recording, reproducing or erasing systems characterised by the structure or type of the carrier
    • G11B2007/0006—Recording, reproducing or erasing systems characterised by the structure or type of the carrier adapted for scanning different types of carrier, e.g. CD & DVD

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Head (AREA)
  • Semiconductor Lasers (AREA)

Abstract

A diffractive part for an optical scanning device is described. The device is for scanning a first information layer by means of a first radiation beam having a first wavelength and a first polarisation, a second information layer by means of a second radiation beam having a second wavelength and a second polarisation, and a third information layer by means of a third radiation beam having a third wavelength and a third polarisation. The first, second and third wavelengths differ from each other. The device includes a radiation source for supplying the first, second and third radiation beams, an objective lens system for converging the radiation beams on the respective information layer, and a diffractive part arranged in the optical path of the radiation beams. The diffractive part includes a first diffractive grating structure having a series of steps of predetermined height to introduce a phase change that is an integral multiple of 27E for both the second and third wavelengths but not the first wavelength, and a second diffractive grating structure having a series of steps of predetermined height to introduce a phase change that is an integral multiple of 2π for the first and third wavelengths but not the second wavelength.
PCT/IB2005/052460 2004-07-27 2005-07-21 Diffractive part WO2006013526A2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP05773307A EP1774520B1 (en) 2004-07-27 2005-07-21 Diffractive part
JP2007523217A JP2008508653A (en) 2004-07-27 2005-07-21 Diffraction parts
DE602005007356T DE602005007356D1 (en) 2004-07-27 2005-07-21 DIFFERENTIAL ELEMENT
US11/572,603 US7602691B2 (en) 2004-07-27 2005-07-21 Diffractive part

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP04300480.3 2004-07-27
EP04300480 2004-07-27

Publications (2)

Publication Number Publication Date
WO2006013526A2 WO2006013526A2 (en) 2006-02-09
WO2006013526A3 true WO2006013526A3 (en) 2006-06-22

Family

ID=35787502

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2005/052460 WO2006013526A2 (en) 2004-07-27 2005-07-21 Diffractive part

Country Status (9)

Country Link
US (1) US7602691B2 (en)
EP (1) EP1774520B1 (en)
JP (1) JP2008508653A (en)
KR (1) KR20070044037A (en)
CN (1) CN100511436C (en)
AT (1) ATE397776T1 (en)
DE (1) DE602005007356D1 (en)
TW (1) TW200620255A (en)
WO (1) WO2006013526A2 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4737536B2 (en) * 2006-02-16 2011-08-03 ソニー株式会社 Optical pickup device and optical disk device
JP2009223936A (en) 2008-03-14 2009-10-01 Ricoh Co Ltd Optical pickup and optical information processing device using the same
JPWO2010016559A1 (en) * 2008-08-07 2012-01-26 旭硝子株式会社 Diffraction grating, aberration correction element, and optical head device
TWI432780B (en) * 2011-01-19 2014-04-01 台達電子工業股份有限公司 Illumination system

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0789355A1 (en) * 1996-01-31 1997-08-13 Pioneer Electronic Corporation Multiple focal lens, multiple focal optical pickup and optical information reproducing apparatus
US5966364A (en) * 1996-08-26 1999-10-12 Laser Dynamcics, Inc. Optical pick-up apparatus for multiple data surface optical disk system
JP2001209966A (en) * 2000-01-26 2001-08-03 Pioneer Electronic Corp Optical pickup
US20020051247A1 (en) * 2000-09-25 2002-05-02 Koninklijke Philips Electronics Optical scanning device
US20030039033A1 (en) * 2001-06-13 2003-02-27 Asahi Kogaku Kogyo Kabushiki Kaisha Diffraction optical element
US20030064295A1 (en) * 1998-10-29 2003-04-03 Unno Yasuyuki Method for making element
US20050083562A1 (en) * 2002-01-17 2005-04-21 Hendriks Bernardus Hendrikus W. Optical scanning device

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW442786B (en) 1999-08-25 2001-06-23 Ind Tech Res Inst Single objective lens optical pick-up head
JP2003006891A (en) * 2001-06-21 2003-01-10 Sankyo Seiki Mfg Co Ltd Optical pickup
WO2003056550A2 (en) 2001-12-24 2003-07-10 Koninklijke Philips Electronics N.V. Dual three-spots optical scanning device
CN1430219A (en) 2002-01-04 2003-07-16 财团法人工业技术研究院 Multi-wavelength optical read and write head
KR100472443B1 (en) 2002-03-19 2005-02-21 삼성전자주식회사 Optical pick-up apparatus
US7245407B2 (en) * 2002-06-10 2007-07-17 Matsushita Electric Industrial Co., Ltd. Complex objective lens compatible with information media of different thicknesses
JP2004327003A (en) * 2002-07-26 2004-11-18 Sharp Corp Optical pickup
KR100499007B1 (en) * 2002-12-30 2005-07-01 삼성전기주식회사 Optical Pickup Device with Holographic Optical Element and Method for Forming Hologram Pattern

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0789355A1 (en) * 1996-01-31 1997-08-13 Pioneer Electronic Corporation Multiple focal lens, multiple focal optical pickup and optical information reproducing apparatus
US5966364A (en) * 1996-08-26 1999-10-12 Laser Dynamcics, Inc. Optical pick-up apparatus for multiple data surface optical disk system
US20030064295A1 (en) * 1998-10-29 2003-04-03 Unno Yasuyuki Method for making element
JP2001209966A (en) * 2000-01-26 2001-08-03 Pioneer Electronic Corp Optical pickup
US20020051247A1 (en) * 2000-09-25 2002-05-02 Koninklijke Philips Electronics Optical scanning device
US20030039033A1 (en) * 2001-06-13 2003-02-27 Asahi Kogaku Kogyo Kabushiki Kaisha Diffraction optical element
US20050083562A1 (en) * 2002-01-17 2005-04-21 Hendriks Bernardus Hendrikus W. Optical scanning device

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 2000, no. 25 12 April 2001 (2001-04-12) *

Also Published As

Publication number Publication date
CN1993738A (en) 2007-07-04
ATE397776T1 (en) 2008-06-15
JP2008508653A (en) 2008-03-21
US7602691B2 (en) 2009-10-13
EP1774520A2 (en) 2007-04-18
TW200620255A (en) 2006-06-16
KR20070044037A (en) 2007-04-26
DE602005007356D1 (en) 2008-07-17
US20080095015A1 (en) 2008-04-24
WO2006013526A2 (en) 2006-02-09
CN100511436C (en) 2009-07-08
EP1774520B1 (en) 2008-06-04

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